/*********************************************************************
 * Copyright (C) 2002 Andrew Khan
 * <p>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * <p>
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ***************************************************************************/

package jxl.write.biff;

import jxl.Workbook;
import jxl.biff.StringHelper;
import jxl.biff.Type;
import jxl.biff.WritableRecordData;

/**
 * The name used when Excel was installed.  
 * When writing worksheets, it uses the value from the WorkbookSettings object,
 * if this is not set (null) this is hard coded as
 * Java Excel API + Version number
 */
class WriteAccessRecord extends WritableRecordData {
    /**
     * The data to output to file
     */
    private byte[] data;

    // String of length 112 characters
    /**
     * The author of this workbook (ie. the Java Excel API)
     */
    private final static String authorString = "Java Excel API";
    private String userName;

    /**
     * Constructor
     */
    public WriteAccessRecord(String userName) {
        super(Type.WRITEACCESS);

        data = new byte[112];
        String astring = userName != null ?
                userName :
                authorString + " v" + Workbook.getVersion();

        StringHelper.getBytes(astring, data, 0);

        // Pad out the record with space characters
        for (int i = astring.length(); i < data.length; i++) {
            data[i] = 0x20;
        }
    }

    /**
     * Gets the data for output to file
     *
     * @return the binary data
     */
    public byte[] getData() {
        return data;
    }
}
